Coffee cup looks foggy after rendering
Yeah, turns out I just needed to increase the number of render samples even more. I was originally rendering at 256 samples, and increasing it to 500 didn't make a noticeable difference (hence why I thought the problem wasn't related). But increasing the number of samples even further to 1000 made a significant improvement, and 2000 virtually solved the issue. Thank you and hope this helps anyone else with this problem.